提高电能质量的风柴蓄独立微电网分层协调控制

doi:10.3969/j.issn.1000-565X.2015.04.015

华南理工大学学报（自然科学版） ›› 2015, Vol. 43 ›› Issue (4): 104-111.doi: 10.3969/j.issn.1000-565X.2015.04.015

提高电能质量的风柴蓄独立微电网分层协调控制

马艺玮杨苹王月武赵卓立

华南理工大学电力学院//广东省绿色能源技术重点实验室，广东广州 510640

收稿日期:2014-10-16 修回日期:2014-11-10 出版日期:2015-04-25 发布日期:2015-03-03
通信作者: 马艺玮(1980-)，女，博士生，主要从事可再生能源分布式发电技术与微电网智能控制技术研究． E-mail:ma.yiwei@mail.scut.edu.cn
作者简介:马艺玮(1980-)，女，博士生，主要从事可再生能源分布式发电技术与微电网智能控制技术研究．
基金资助:
国家“863”计划项目(2014AA052001);国家自然科学基金资助项目(61273172);广东省战略性新兴产业核心技术攻关项目(2012A032300001)

Hierarchical Coordinated Control of Islanded Wind-Diesel-Battery Microgrid for Improving Power Quality

Ma Yi-wei Yang Ping Wang Yue-wu Zhao Zhuo-li

School of Electric Power//Guangdong Key Laboratory of Clean Energy Technology，South China University of Technology，Guangzhou 510640，Guangdong，China

Received:2014-10-16 Revised:2014-11-10 Online:2015-04-25 Published:2015-03-03
Contact: 马艺玮(1980-)，女，博士生，主要从事可再生能源分布式发电技术与微电网智能控制技术研究． E-mail:ma.yiwei@mail.scut.edu.cn
About author:马艺玮(1980-)，女，博士生，主要从事可再生能源分布式发电技术与微电网智能控制技术研究．
Supported by:
Supported by the National High-tech R＆D Program of China (863 Program)(2014AA052001)，the National Natural Science Foundation of China(61273172)and the Key Technology Projects of Strategic Emerging Industries in Guangdong Province(2012A032300001)

摘要/Abstract

摘要： 针对高渗透率间歇性能源和频繁投切的系统负荷对独立微电网运行控制的影响，在充分考虑柴油发电机和电池储能不同控制特性的基础上，提出一种基于不同时间尺度的独立微电网分层协调控制方案，分别设计了基于蓄电池储能的一级控制器和基于柴油发电机的二级控制器来提高系统电压、频率在不同时间尺度上的稳定性．针对较短时间尺度及较小变化幅度的随机净负荷波动，通过改进蓄电池储能系统的 P-f 和 Q-V 下垂控制器来提高系统电压、频率的稳定性;而对于变化周期长和变化幅度大的净负荷波动，分别采用比例积分控制器和辅助无功补偿器来实现柴油发电机组对系统频率和电压的无差控制，从而保证系统稳定性．最后，通过对东澳岛风柴蓄独立微电网在不同运行条件下的运行控制结果分析，验证了所提方法的可行性和有效性．

关键词: 独立微电网, 时间尺度, 分层协调控制, 柴油发电机, 蓄电池储能系统

Abstract: As the high-penetration intermittent microsource and the frequently-switched load may impact the opera-tion stability of islanded microgrids，a hierarchical coordinated control scheme based on different time scales，which takes into full consideration the control characteristics of both the diesel generator and the battery storage system，is proposed． In this scheme，a primary controller based on the battery storage system and a secondary controller based on the diesel generator are designed to improve the stability of voltage and frequency of islanded microgrids in diffe-rent time scales． Moreover，in order to resist smaller and faster random system net-load disturbances，a modified droop controller with P-f and Q-V controls of the battery storage system is proposed，which helps to improve the sta-bility of system voltage and frequency． At the same time，in order to resist bigger and slower system net-load dis-turbances，a PI controller and an auxiliary reactive power compensator are presented for the diesel generator，which helps to implement the isochronous control of system frequency and voltage and to further restore the system opera-tion stability． The feasibility and effectiveness of the proposed method is finally verified by the analysis of Dong’ao islanded wind-diesel-battery microgrid operated in various conditions．

Key words: islanded microgrid, time scale, hierarchical coordinated control, diesel generator, battery storage sys-tem

中图分类号:

TM76

马艺玮杨苹王月武赵卓立. 提高电能质量的风柴蓄独立微电网分层协调控制[J]. 华南理工大学学报（自然科学版）, 2015, 43(4): 104-111.

Ma Yi-wei Yang Ping Wang Yue-wu Zhao Zhuo-li. Hierarchical Coordinated Control of Islanded Wind-Diesel-Battery Microgrid for Improving Power Quality[J]. Journal of South China University of Technology (Natural Science Edition), 2015, 43(4): 104-111.

提高电能质量的风柴蓄独立微电网分层协调控制

Hierarchical Coordinated Control of Islanded Wind-Diesel-Battery Microgrid for Improving Power Quality

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